Read below about swollen finger, including causes, treatment options and remedies. Or get a personalized analysis of your swollen finger from our A.I. health assistant. At Buoy, we build tools that help you know what’s wrong right now and how to get the right care.

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Swollen Finger Symptoms

Swelling is the result of fluid buildup that gets trapped in your body's tissues. Most people first notice swelling because the affected body part may appear larger than normal. Often, a swollen finger can be easily identified by comparing its size to the size of your other fingers; however, sometimes the swelling may not be visibly obvious and difficult to discern. Often people with a swollen finger also experience other symptoms in addition to the swelling.

These associated swollen finger symptoms may include:

  • Stretched or shiny skin
  • Skin that dimples or pits after pressing on the affected area for a few seconds
  • Pain
  • Stiffness or limited range of motion
  • Warmth or redness of the affected area

If you notice any of these swollen finger symptoms, make an appointment with your doctor promptly in order to follow up on your symptoms, get a diagnosis and receive appropriate care.

Swollen Finger Causes Overview

Any condition that causes accumulation of fluid in the tissues of your finger will cause swelling. Swelling can occur throughout the body due to a variety of causes but swelling in just one finger has a more limited number of triggers. A swollen finger may not seem serious initially, but without prompt medical follow-up and care your symptoms could become worse.

Inflammatory causes:

  • Rheumatologic: This category includes inflammatory conditions involving the body's tissues and joints. Conditions such as arthritis and gout cause inflammation that easily brings fluid into the tissues leading to swelling, redness and tenderness of single fingers and often the big toe.
  • Infection:. Bacteria that is always present on the skin can easily get into the finger via a cut, bite or other puncture. The bacteria will infect the tissues of the finger and cause entrance of fluids into the tissues that result in inflammation, swelling and other associated symptoms. Viral infections can also cause swelling of the finger in people with jobs that require exposure of the finger to body parts such as the mouth (dentists, nurses, healthcare professionals). This condition is known as herpetic whitlow.

Environmental causes:

  • Trauma : Trauma to the finger that causes swelling can include simple mishaps such as jamming one's finger on a wall or table to serious accidents that result in broken bones.
  • Weather: Sometimes extremely cold or hot weather can trigger swelling in people with pre-existing conditions such as Raynaud's syndrome. Observe for any patterns in your finger swelling and tell your doctor in order to investigate an underlying condition.

A.I. Health Assistant Causes for Swollen Finger

The list below shows results from the use of our A.I. Health Assistant by Buoy users who experienced swollen finger. This list does not constitute medical advice.

  1. 1.Non - Serious Finger Injury

    Finger injuries are very common & rarely need medical treatment.

    The pain & swelling will begin to resolve within a few days.

    Rarity:
    Common
    Top Symptoms:
    recent finger injury, finger pain from an injury, swollen finger, severe finger pain
    Symptoms that always occur with non-serious finger injury:
    recent finger injury
    Symptoms that never occur with non-serious finger injury:
    bent or crooked finger
    Urgency:
    Self-treatment
  2. 2.Dislocated Finger

    Dislocations of the finger at the base of the finger are relatively rare. However, when they do happen, they can damage the blood supply to the finger and its nerves.

    Good prognosis with rehab

    Rarity:
    Rare
    Top Symptoms:
    bent or crooked finger, finger dislocation at the middle knuckle, swollen finger, finger pain from an injury
    Symptoms that always occur with dislocated finger:
    bent or crooked finger, finger dislocation at the middle knuckle
    Urgency:
    In-person visit
  3. 3.Nail Infection (Paronychia)

    Paronychia is an infection of the nail folds, typically caused by Staph. Aureus. Or a fungus.

    Great prognosis. Recovery in the next two weeks

    Rarity:
    Rare
    Top Symptoms:
    spontaneous finger pain, fingernail pain, fingernail swelling
    Urgency:
    Phone call or in-person visit
  4. 4.Cellulitis

    Facial cellulitis is a skin infection that typically comes from other parts of the face like the mouth or the sinuses and needs antibiotic treatment. Symptoms can be pain, redness, warmth and swelling of the affected area.

    Dependent on severity of infection

    Rarity:
    Uncommon
    Top Symptoms:
    fever, chills, facial redness, swollen face, face pain
    Symptoms that always occur with cellulitis:
    facial redness, area of skin redness
    Urgency:
    Primary care doctor

    Swollen Finger Checker

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  5. 5.Dupuytren Disease

    Dupuytren Disease, also known as Dupuytren's contracture, is a condition that gradually causes connective tissue (fascia) under the skin of the palm to thicken and become scar-like. Although Dupuytren's isn't painful, it does restrict movement. The thickened tissue forces several fingers - usually the ring and pinky fingers - to curl in toward the palm.

    This condition is chronic, and may get worse over time, eventually requiring treatment.

    Rarity:
    Uncommon
    Top Symptoms:
    finger joint stiffness, hand bump, thickened skin on the finger, swollen hands, hand injury
    Urgency:
    Primary care doctor
  6. 6.Psoriatic Arthritis

    Psoriasis is a skin disease that causes itchy or sore patches of thick, red skin with silvery scales. Some people who have psoriasis also get a form of arthritis (inflammation and swelling of joints) called psoriatic arthritis.

    This type of arthritis can be managed with treatment, and permanent damage can be prevented. However, the underlying cause (psoriasis) is currently incurable.

    Rarity:
    Rare
    Top Symptoms:
    shoulder pain, lower back pain, joint pain, upper back pain, hip pain
    Urgency:
    Primary care doctor
  7. 7.Rheumatoid Arthritis

    Rheumatoid arthritis (RA) is a form of arthritis that causes pain, swelling, stiffness and loss of function in your joints. It can affect any joint but is common in the wrist and fingers. RA is an autoimmune disorder, meaning that it is caused by the immune system incorrectly attacking the joints when it shouldn't.

    RA is a chronic disease which requires lifelong control.

    Rarity:
    Rare
    Top Symptoms:
    fatigue, depressed mood, joint pain, muscle aches, daytime sleepiness
    Urgency:
    Primary care doctor
  8. 8.Boxer's Fracture

    Boxer's fracture is a term for a fracture of one of fingers and generally occurs after a closed fist makes contact with a hard object.

    With proper medical attention, a Boxer's Fracture heals within 4 months.

    Rarity:
    Common
    Top Symptoms:
    finger pain, swollen finger, finger bruise, punched a hard object
    Symptoms that always occur with boxer's fracture:
    finger pain, swollen finger, punched a hard object
    Urgency:
    In-person visit

Swollen Finger Treatments and Relief

If you notice a swollen finger after an injury or trauma such as jamming or hitting your finger:

  • Rest, Ice, and Elevate: Put an ice pack on your finger or place your finger in ice water every 15 minutes. (Except for possible Raynaud's Syndrome – see above). Maintain your finger elevated and still to minimize further irritation and prevent continued fluid accumulation in your tissues.
  • Protect: If the pain and swelling persists, you can protect the affected finger from further trauma by attaching it to an adjacent finger using tape or a self-adhesive wrap. The affected finger will be less likely to move which prevents further inflammation and fluid accumulation.

If your swollen finger symptoms persist for a prolonged period and worsen despite not seeming related to a traumatic event, make an appointment with your doctor.

Depending on the swollen finger cause your doctor may initiate:

  • Antibiotics: Your doctor will prescribe antibiotics if your swollen finger symptoms are due to a bacterial infection.
  • Rheumatologic Medications: There are several types of medications that combat rheumatologic conditions that may be causing your swollen finger. Talk to your doctor to discuss and come to an agreement about the best type of treatment.

Seek medical care immediately if:

  • Your finger appears deformed.
  • You cannot straighten your finger.
  • The area becomes hot and inflamed and you develop a fever.
  • Swelling and pain increases significantly and persists.
  • The finger becomes numb and turns white or pink.

These symptoms may be related to a more serious cause such as a broken finger resulting in decreased blood flow to the finger and/or hand.

FAQs About Swollen Finger

Here are some frequently asked questions about swollen finger.

Why is the tip of my finger swollen?

Fingertip swelling is usually due to infection or injury. If you jam your fingertip or strike it, you can fracture the bone inside or injure the joint. Infection can also lead to fingertip swelling. Most commonly, this is due to a viral or bacterial infection of the skin folds lining your nail (which is called “paronychia”) or the tissue of the fingertip itself (which is called “felon”). Your fingertip may also be infected with herpes, which is called “herpetic whitlow.”

How do you get an infection out of your finger?

In general, you should consult with a physician for infection of your finger. Treatment of most infections of the finger involve skin care, antibiotics, and warm water or antiseptic soaks. In some cases, the infection may need to be incised and drained.

Why do my fingers swell after I eat?

Your fingers may swell after you eat salty foods. When you eat a lot of salt, your body retains more water than it otherwise would in order to keep its salt concentration within a normal range. This can lead to bloating and swelling in the hands and feet.

Why is my middle finger swollen and painful?

Your middle finger may become swollen and painful due to injury, infection, or inflammatory disease. If you jam or strike your finger, the bones or joints inside might be injured, leading to pain and swelling. Chronic overuse may lead to arthritis. Certain bacterial and viral infections of the bones, joints, or tissue of the finger may also lead to swelling and pain. Autoimmune diseases may also lead to local swelling and pain, as well as diseases such as gout.

Why does it hurt to bend my swollen finger?

The body uses pain as a “danger signal.” When bones or tissues are injured, you experience pain as a warning sign to not use that injured body part for risk of worsening the injury and as a signal to seek treatment prior to permanent damage. Pain or swelling in your finger implies damage to the structures of the finger, usually the bones, joints, or soft tissue.

Questions Your Doctor May Ask About Swollen Finger

  • Q.Have you ever been diagnosed with diabetes?
  • Q.Have you ever been diagnosed with cancer?
  • Q.Do you have these contractures that limit the movement of your fingers? (See picture)
  • Q.Do any of your body parts (e.g., toes, hands, ears) feel cold?

If you've answered yes to one or more of these questions, try our swollen finger symptom checker to find out more.

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Swollen Finger Symptom Checker Statistics

  • People who have experienced swollen finger have also experienced:

    • 14% Finger Pain
    • 4% Finger Joint Stiffness
    • 3% Pain in the Middle Knuckle of the Finger
  • People who have experienced swollen finger had symptoms persist for:

    • 37% Less Than a Day
    • 35% Less Than a Week
    • 13% Over a Month
  • People who have experienced swollen finger were most often matched with:

    • 62% Dislocated Finger
    • 25% Nail Infection (Paronychia)
    • 12% Non - Serious Finger Injury
  • Source: Aggregated and anonymized results from visits to the Buoy AI health assistant (check it out by clicking on “Take Quiz”).

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